Help with Wiring Bathroom Switches

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  #1  
Old 09-12-13, 12:22 PM
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Help with Wiring Bathroom Switches

Hey guys,

Can someone give me some help with wiring these switches? There are to be two switches, one controlling vanity light, one controlling exhaust fan/light.

Thanks in advance, and let me know if I need to explain anything!

Rick
 
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Old 09-12-13, 12:43 PM
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I have some questions for you first. Are you in Cook county? Did you get a permit for this job? I ask these questions because I see both conduit (center bottom of the box) AND type NM cable. Cook county requires conduit for all electrical work.
 
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Old 09-12-13, 12:54 PM
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Kendall County. The work to this point was performed by a licensed electrician, and all necessary permits were in place. The NM cable is run through conduit as well.
 
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Old 09-12-13, 01:10 PM
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The NM cable is run through conduit as well.
It wasn't an electrician that did that was it?
 
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Old 09-12-13, 01:20 PM
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Definitely done by an electrician. Perhaps I'm mistaken in thinking that the NM is run through conduit? I can't really see now that drywall is all in place.
 
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Old 09-12-13, 01:50 PM
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Kendall County. The work to this point was performed by a licensed electrician, and all necessary permits were in place. The NM cable is run through conduit as well.
Where is Kendall County, anywhere near Chicago? Do you have a conduit requirement in your county too? Did the inspector make any comments on the rough-in inspection on the NM cables?
 
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Old 09-12-13, 02:20 PM
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There is no residential conduit requirement in Kendall County (about two hours southwest of Chicago). The inspector made no comments as to code violations on inspection.
 
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Old 09-12-13, 11:56 PM
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Okay, now that we have established that the wiring method is approved and passed inspection tell us what the two cables are for. You stated something about wiring switches but until we know where the new cables go we can't answer.
 
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Old 09-13-13, 06:10 AM
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Thanks. The NM on the right as you look at the photo is the load I believe. The two pieces of NM on the left are wired to the fan and the vanity light. What's got me confused is how the red, white, and blue cables in the center come into play.
 

Last edited by micus; 09-13-13 at 07:10 AM.
  #10  
Old 09-13-13, 11:56 PM
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We seem to have a language barrier. Load means the electrical device being powered. Your fan and vanity lights are loads. The term cable denotes a factory assembly of more than two conductors, conductors being individual wires. The three wires in the center are most likely a 240/120 volt "multi-wire branch circuit" (MWBC) What the type NM on the right (that you called load) might be is something you will have to determine, could it be for a heater?

Do you have any kind of meter or "squeaker" to determine voltages? Why didn't the electrician who ran the type NM also connect the switches?
 
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Old 09-14-13, 05:34 AM
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The xx-3 cable may be going to the fan light to allow separate switching.
 
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Old 09-14-13, 05:53 AM
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Lack of information may has impeded answers to your problem. Please answer all the questions below. There is no single way to wire and we can only guess without adequate information.

Using a multimeter (preferably analog) or a solenoid type tester measure the voltage between the black and white of each 2-conductor cable. Mark the cable that shows 120 volts. (A non contact tester is useless for this.)

Open the fan connection box and determine the connections there. Post those along with a picture.

Open the vanity light box and tell and show us the wiring there.
 
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